<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
	<title>首页</title>
</head>
<body>
	首页。${flowExecutionUrl}<br/><!-- 最开始flowExecutionUrl是空字符串 -->
	Item1:<a href="${pageContext.request.contextPath}/aaa1">加入购物车</a><br/>
	Item2:<a href="${pageContext.request.contextPath}/aaa1">加入购物车</a><br/>
	Item2:<a href="${pageContext.request.contextPath}/aaa1">加入购物车</a>
</body>
</html>